User Manual
19
Volt-watt (Charging):
When the power from the grid is required to charge the energy storage
system, the import power from the grid varies in response to the grid
voltages. The response curve is defined by the voltage reference values and
the corresponding power consumption from the grid for charging energy
storage.
Frq-watt:
Define the response curve with a start grid frequency and an end grid
frequency. The inverter power output or input will vary in response to the
increase or decrease in grid frequency.
3.2.5 Load Control
The inverter provides a load control dry-contact (DO1 relay), which can control
the load via a contactor. Refer to “
for the cable
connection.
User may set the control mode according to individual demand. Refer to
“
” for LCD settings.
Timer
: Set the starting time and end time. The DO function will be enabled
during the interval.
ON/OFF
: The DO function can be enabled if
ON
or disabled if
OFF
.
Optimized
:
Set the starting time, end time, and the optimized power. During the
interval, when the export power reaches to the optimized power, the DO
function will be enabled.
3.3 Battery Management
The following kinds of batteries are compatible with the PV ESS. Further battery
models will be made compatible in the furture.
Li-ion battery from Sungrow, LG Chem, GCL, Pylon, BYD and TAWAKI.
Lead-acid batteries which require manual configuration.
To maximize the battery life, the inverter will perform battery charge, discharge,
and battery maintenance based on the battery status communicated by the
BMS.
